com.google.sampling.experiential.client.DurationView.java Source code

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Here is the source code for com.google.sampling.experiential.client.DurationView.java

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/*
* Copyright 2011 Google Inc. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance  with the License.
* You may obtain a copy of the License at
*
*    http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied.  See the License for the
* specific language governing permissions and limitations
* under the License.
*/
// Copyright 2010 Google Inc. All Rights Reserved.

package com.google.sampling.experiential.client;

import java.util.Date;

import com.google.gwt.core.client.GWT;
import com.google.gwt.i18n.client.DateTimeFormat;
import com.google.gwt.user.client.ui.ClickListener;
import com.google.gwt.user.client.ui.Composite;
import com.google.gwt.user.client.ui.HTML;
import com.google.gwt.user.client.ui.HorizontalPanel;
import com.google.gwt.user.client.ui.Label;
import com.google.gwt.user.client.ui.RadioButton;
import com.google.gwt.user.client.ui.VerticalPanel;
import com.google.gwt.user.client.ui.Widget;
import com.google.gwt.user.datepicker.client.DateBox;
import com.google.sampling.experiential.shared.TimeUtil;

/**
 * View for configuring the run length of an experiment.
 * Options are Ongoing, which runs forever.
 * Or, Fixed Length, which runs from a start date to an end date.
 *
 * @author Bob Evans
 *
 */
public class DurationView extends Composite {

    private static DateTimeFormat FORMATTER = DateTimeFormat.getFormat(TimeUtil.DATE_FORMAT);

    HorizontalPanel mainPanel;
    private boolean fixedDuration;
    private String startDate;
    private String endDate;
    private RadioButton radio1;
    private RadioButton radio2;
    private DateBox endBox;
    private DateBox startBox;
    private MyConstants myConstants;

    public DurationView(Boolean fixedDuration, String start, String end) {
        super();
        myConstants = GWT.create(MyConstants.class);
        mainPanel = new HorizontalPanel();
        this.fixedDuration = fixedDuration != null ? fixedDuration : Boolean.FALSE;

        Date today = new Date();
        Date tomorrow = new Date(today.getTime() + TimeUtil.MILLIS_IN_A_DAY + TimeUtil.EXTRA_MILLIS_OFFSET);
        String todayString = FORMATTER.format(today);
        String tomorrowString = FORMATTER.format(tomorrow);
        // TODO (bobevans): Use Calendar or the GWT time manipulation stuff
        this.startDate = start != null ? start : todayString;
        this.endDate = end != null ? end : tomorrowString;
        initWidget(mainPanel);
        init();
    }

    /**
     *
     */
    private void init() {
        mainPanel.setStyleName("bordered");
        VerticalPanel outer = new VerticalPanel();
        HorizontalPanel line = new HorizontalPanel();
        line.setStyleName("left");
        HTML keyLabel = new HTML("<h3>" + myConstants.duration() + ":</h3>");
        //keyLabel.setStyleName("keyLabel");
        outer.add(keyLabel);
        radio1 = new RadioButton("duration", myConstants.ongoingDuration());
        radio2 = new RadioButton("duration", myConstants.fixedDuration());
        radio1.setChecked(!fixedDuration);
        radio2.setChecked(fixedDuration);

        line.add(radio1);
        line.add(radio2);
        outer.add(line);

        final HorizontalPanel datePanel = new HorizontalPanel();
        VerticalPanel startPanel = new VerticalPanel();
        datePanel.add(startPanel);
        startBox = new DateBox();
        startBox.setFormat(new DateBox.DefaultFormat(DateTimeFormat.getShortDateFormat()));
        startBox.setValue(FORMATTER.parse(startDate));

        Label startLabel = new Label(myConstants.startDate() + ":");
        keyLabel.setStyleName("keyLabel");

        startPanel.add(startLabel);
        startPanel.add(startBox);

        VerticalPanel endPanel = new VerticalPanel();
        datePanel.add(endPanel);
        endBox = new DateBox();
        endBox.setFormat(new DateBox.DefaultFormat(DateTimeFormat.getShortDateFormat()));
        endBox.setValue(FORMATTER.parse(endDate));

        Label endLabel = new Label(myConstants.endDate() + ":");
        keyLabel.setStyleName("keyLabel");

        endPanel.add(endLabel);
        endPanel.add(endBox);

        datePanel.setVisible(fixedDuration);
        line.add(datePanel);

        ClickListener selectionListener = new ClickListener() {

            @Override
            public void onClick(Widget sender) {
                if (sender.equals(radio1)) {
                    datePanel.setVisible(false);
                } else {
                    datePanel.setVisible(true);
                }
            }

        };
        radio1.addClickListener(selectionListener);
        radio2.addClickListener(selectionListener);
        mainPanel.add(outer);
    }

    public boolean isFixedDuration() {
        return radio2.isChecked();
    }

    // Visible for testing
    protected void setFixedDuration(boolean isFixedDuration) {
        radio1.setChecked(!isFixedDuration);
        radio2.setChecked(isFixedDuration);
    }

    public String getStartDate() {
        return FORMATTER.format(startBox.getValue());
    }

    // Visible for testing
    protected void setStartDate(String startDate) {
        startBox.setValue(FORMATTER.parse(startDate));
    }

    public String getEndDate() {
        return FORMATTER.format(endBox.getValue());
    }

    // Visible for testing
    protected void setEndDate(String endDate) {
        endBox.setValue(FORMATTER.parse(endDate));
    }

}